| The key work of transmitting center is to ensure the security broadcasting of broadcast and television programs. Network equipment rooms of corresponding TV stations in transmitting center play important roles in daily broadcasting works and are in charge of the control and monitoring of office network systems as well as automatic broadcasting networks of corresponding TV stations. Meanwhile, network equipment rooms are also responsible for signal source transmission and storage of critical data. A considerable number of aforementioned service systems are closely related to the broadcasting works of broadcast and TV programs. The security operation of automatic broadcasting networks has also become more and more important. To ensure the security of broadcasting and after reasonable consideration on security operation circumstances of current automatic broadcasting networks, we've come up with several measures. Firstly, we propose the establishment of independent automatic broadcasting networks, so that we can realize physical isolation between office network systems and automatic broadcasting networks, while at the same time implement internal interconnection between automatic broadcasting networks of corresponding TV stations. Secondly, data storage system should be built up to ensure data security during automatic broadcasting networks' operation. Thirdly, ventilation monitoring system of network equipment room should be introduced to meet network equipments' requirements on environment, for example, to ensure the equipments are under the circumstances of constant temperature, humidity, pressure and with little noise and dust. Finally, IT operation and maintenance supervision system of automatic broadcasting network should be established so that automatic broadcasting networks' security operation can be ensured by being provided with a reliable, fast and stable network environment.In Chapter 1, the issue's background, significance of the research work as well as my primary work are briefly discussed. In Chapter 2, the construction of automatic broadcasting and television network is presented. Firstly, establishment of automatic broadcasting control network with the aid of bi-directional transmission technology based on single-fiber-optic is introduced, and project implementation status and counter measures for problems occurred in practice are presented. Chapter 3 mainly deals with data storage system of automatic broadcasting control network. Firstly, construction of data storage system in transmission center is introduced, secondly, the implementation of domain and storage system is presented, project implementation status and counter measures for problems encountered in practice are also discussed. In Chapter 4 functions and design principles of network equipment room's ventilation monitoring system are analyzed, the system's overall design program is established. Hardware and software overall architecture and detailed implementation programming of ventilation monitoring system are also presented in this chapter. IT operation and maintenance supervision system of automatic broadcasting network is discussed in Chapter 5. In this chapter, overall architecture of the system is firstly presented, and then, application software design is depicted. In Chapter 6, this paper is summarized, and concluded that by using aforementioned four measures comprehensively, security operation of automatic broadcasting and television network can be guaranteed. |